Automated call left message to call this number- scam

Just received a call as well.  Automated message from the IRS.  Scam.

Calling and saying they are the irs filling a lawsuit against me

Lady automated message claiming to be the IRS. Scam

Called cell phone, left voice message to call back on same number as showed on caller ID. As a lark, I called back using the company phone. Someone (male) answered and spoke so quickly, that all that registered was "blah-blah-blah-blah services. Can I help you?" When I asked to repeat it, the person at the other end hung up on me.